Kimi-Dev-72B is an advanced open-source coding language model designed for software engineering tasks, achieving a state-of-the-art performance of 60.4% on the SWE-bench Verified benchmark. It leverages large-scale reinforcement learning to autonomously patch real repositories and ensures high-quality solutions by only rewarding successful test suite completions. Developers and researchers are encouraged to explore and contribute to its capabilities, available for download on Hugging Face and GitHub.